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jvscode [[at]] fastmail [[dot]] fm

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Sorting arrays in Bash

to sort shell osx mac bash unix xcode array filename print0 suffix sort0 by jv on Aug 06, 2008 1 Comments


# get a sort command that will sort -print0 output (sort0 below)

#  requires Xcode on Mac OS X
open http://developer.apple.com/technology/Xcode.html

cd ~/Desktop

# Improved GNU sort (from textutils-1.22)
open http://attractivechaos.wordpress.com/2008/08/22/improved-gnu-sort-from-textutils-122/

curl -L -O http://www.freewebs.com/attractivechaos/sort-1.22a.tar.bz2

tar -xjf sort-1.22a.tar.bz2

cd sort-1.22a


# replace
#             int eolchar = '\n';
# with
#             int eolchar = '\0';

cat <<-'EOF' | sed -e 's/^ *//' -e 's/ *$//' | ed -s ~/Desktop/sort-1.22a/sort.c
   H
   /int eolchar = '\\n';/s/\\n/\\0/
   wq
EOF


make


alias sort0=~/Desktop/sort-1.22a/sort


ar1=('g h c' abc def 123)
ar2=('1 2 3' ABC ghc DEF)
ar3=('-x' '! & ?' $'a test\nsentence' $'another test\nsentence\n.' a64bitapp a32bitapp)

printf "%s\n" "${#ar1[@]}" "${#ar2[@]}" "${#ar3[@]}"  

printf "%s\000" "${ar1[@]}" | sort0 | tr '\0' '\n'
printf "%s\000" "${ar1[@]}" | sort0 | while read -d $'\0' item; do echo "index $[i++]:   ${item}"; done

printf "%s\000" "${ar2[@]}" | sort0 | while read -d $'\0' item; do echo "index $[i++]:   ${item}"; done

printf "%s\000" "${ar3[@]}" | sort0 | while read -d $'\0' item; do echo "index $[i++]:   ${item}"; done



# sort & uniq filename suffixes

# encode \n as \777 within the find command, then sort and finally decode \777 as \n again with the tr command
# (also an exercise in single quote usage)

man ruby | less -p 777
find . -type f -name '[^.]*.*' -exec bash -c 'basename=( "${@##*.}" ); printf "%s\n" "${basename[@]//''$'"'\n'"'''/''$'"'\777'"'''}"'  _ '{}' + | \
     sort -u | nl | tr $'\777' '\n'


# same, but using sort0

find . -type f -name '[^.]*.*' -exec bash -c 'printf "%s\000" "${@##*.}"' _ '{}' + | sort0 -u | tr '\0' '\n'

find . -type f -name '[^.]*.*' -exec bash -c 'printf "%s\000" "${@##*.}"' _ '{}' + | \
         sort0 -u | while read -d $'\0' suffix; do echo "$[i++]:   ${suffix}"; done



#----------------------------------------------------------------------------



export PATH="$(/usr/sbin/sysctl -n user.cs_path)"

export IFS=$'\n'
#export IFS=$' \t\n'

ar1=('g h c' abc def 123)
ar2=('1 2 3' ABC ghc DEF)
ar3=('-x' '! & ?' $'a test\nsentence' $'another test\nsentence\n.' a64bitapp a32bitapp)

printf "%s\n" "${#ar1[@]}" "${#ar2[@]}" "${#ar3[@]}"  


# ar3
for ((i=0; i < "${#ar3[@]}"; i++)); do echo "${ar3[$i]}"; done | sort | nl
for ((i=0; i < "${#ar3[@]}"; i++)); do echo ${ar3[$i]}; done | sort | nl
for ((i=0; i < "${#ar3[@]}"; i++)); do echo "${ar3[$i]}" | ruby -0777 -n -e 'p $_.to_s'; done | nl
for ((i=0; i < "${#ar3[@]}"; i++)); do printf -- "${ar3[$i]}\n" | ruby -0777 -n -e 'p $_.to_s'; done | nl


# sort a single array
ar3sorted=( $(for ((i=0; i < "${#ar3[@]}"; i++)); do echo ${ar3[$i]}; done | sort) )
for ((i=0; i < "${#ar3sorted[@]}"; i++)); do echo "${ar3sorted[$i]}" | ruby -0777 -n -e 'p $_.to_s'; done | nl
for ((i=0; i < "${#ar3sorted[@]}"; i++)); do printf "%s\n" "${ar3sorted[$i]}" | ruby -0777 -n -e 'p $_.to_s'; done | nl


# adding \000\n as array item delimiter
printf "%s\000\n" "${ar3[@]}"  | sed -n -e 'l'
printf "%s\000\n" "${ar3[@]}"  | ruby -n -e 'p $_.to_s'
printf "%s\000\n" "${ar3[@]}"  | ruby -0777 -n -e 'p $_.to_s'
printf "%s\000\n" "${ar3[@]}" | sed -e :a -e '$!N; s/\n/NEWLINE/g; ta' | ruby -n -e 'p $_.to_s'
printf "%s\000\n" "${ar3[@]}" | sed -e :a -e '$!N; s/\n/NEWLINE/g; ta' | tr '\000' '\n' | sed -e 's/^NEWLINE//' | ruby -n -e 'p $_.to_s'


ar3sorted=( $(printf "%s\000\n" "${ar3[@]}" | sed -e :a -e '$!N; s/\n/NEWLINE/g; ta' | tr '\000' '\n' | sed -e 's/^NEWLINE//' | sort) )
for ((i=0; i < "${#ar3sorted[@]}"; i++)); do printf -- "${ar3sorted[$i]//NEWLINE/\n}" | ruby -0777 -n -e 'p $_.to_s'; done | nl


# sort multiple arrays; convert embedded newline characters into single spaces
ar4=( $(printf "%s\n\000" "${ar1[@]}" "${ar2[@]}" "${ar3[@]}" | tr '\n' ' ' | tr '\000' '\n' | sort) )

# sort multiple arrays; preserve embedded newline characters as NEWLINE
ar4=( $(printf "%s\000\n" "${ar1[@]}" "${ar2[@]}" "${ar3[@]}" | sed -e :a -e '$!N; s/\n/NEWLINE/g; ta' | tr '\000' '\n' | sed -e 's/^NEWLINE//' | sort) )


printf "%s\n" "${#ar4[@]}"  
printf "%s\n" "${ar4[@]}" | nl  

for ((i=0; i < "${#ar4[@]}"; i++)); do echo ${ar4[$i]//NEWLINE/\\n}; done | nl
for ((i=0; i < "${#ar4[@]}"; i++)); do echo -e ${ar4[$i]//NEWLINE/\\n}; done | nl
for ((i=0; i < "${#ar4[@]}"; i++)); do printf -- ${ar4[$i]//NEWLINE/\\n}"\n"; done | nl
for ((i=0; i < "${#ar4[@]}"; i++)); do printf -- "${ar4[$i]//NEWLINE/\n}\n"; done | nl
for ((i=0; i < "${#ar4[@]}"; i++)); do printf "%s\n" ${ar4[$i]//NEWLINE/\\n}; done | nl
for ((i=0; i < "${#ar4[@]}"; i++)); do printf -- "${ar4[$i]//NEWLINE/\n}\n" | ruby -0777 -n -e 'p $_.to_s'; done | nl
for ((i=0; i < "${#ar4[@]}"; i++)); do printf "%s\n" "${ar4[$i]//NEWLINE/\n}" | ruby -0777 -n -e 'p $_.to_s'; done | nl

Switch to the login window from the command line

to shell osx mac bash unix window login screen access lock keychain by jv on Aug 04, 2008

# cf. http://www.mactipper.com/2008/07/securely-lock-your-mac-system.html,
# http://www.macosxhints.com/article.php?story=20040724203315798 and
# http://www.apple.com/downloads/macosx/automator/lockdesktop.html

/System/Library/CoreServices/"Menu Extras"/User.menu/Contents/Resources/CGSession -suspend

/System/Library/CoreServices/Menu\ Extras/User.menu/Contents/Resources/CGSession -switchToUserID username


alias lo='/System/Library/CoreServices/Menu\ Extras/User.menu/Contents/Resources/CGSession -suspend'

# <ctrl> + l
help bind
bind -P | grep -i c-l
bind -x '"\C-l"':'/System/Library/CoreServices/Menu\ Extras/User.menu/Contents/Resources/CGSession -suspend'

# <esc> + l
#bind -x '"\M-l"':'/System/Library/CoreServices/Menu\ Extras/User.menu/Contents/Resources/CGSession -suspend'
bind -x '"\el"':'/System/Library/CoreServices/Menu\ Extras/User.menu/Contents/Resources/CGSession -suspend'


#---------------------------------------------


open -a 'Keychain Access'

# go to  Keychain Access > Preferences ... > General > activate "Show Status in Menu Bar" 
# now you can use "Lock Screen" via the Keychain Access menu bar item

Password request dialog from the command line with AppleScript

to password shell osx mac bash unix applescript dialog by jv on Jul 23, 2008

unset -v input

#input="$(/usr/bin/osascript <<-'__HEREDOC__'
input="$(/usr/bin/osascript 2>/dev/null <<-'__HEREDOC__'
   with timeout of 300 seconds
      tell application "Finder"
--      tell application "System Events"
         activate
         set Input to display dialog "Please enter your password:" \
            with title "Password" \
            with icon caution \
            default answer "" \
            buttons {"Cancel", "OK"} \
            default button 2 \
            with hidden answer \
            giving up after 295
         return text returned of Input as string
      end tell
   end timeout
__HEREDOC__
)"

printf "%s\n" "${input}"


open -a 'Script Editor'

# copy & paste the following snippet into Script Editor 

with timeout of 300 seconds
	tell application "Finder"
		activate
		set Input to display dialog "Please enter your password:" with title "Password" with icon caution default answer "" buttons {"Cancel", "OK"} default button 2 giving up after 295 with hidden answer
		return text returned of Input as string
	end tell
end timeout


#---------------------------------------


unset -v input name
#export name="$(/usr/bin/logname)"
export name="$(/usr/bin/whoami)"

input="$(/usr/bin/osascript 2>/dev/null <<-__HEREDOC__
   with timeout of 300 seconds
      tell application "Finder"
--      tell application "System Events"
         activate
         set my_name to "${name}"
         set my_pass to display dialog "Enter password for " & quoted form of my_name \
            with title "Login Window" \
            with icon note \
            default answer "" \
            buttons {"Cancel", "OK"} \
            default button 2 \
            with hidden answer \
            giving up after 295
            return text returned of my_pass as string
      end tell
   end timeout
__HEREDOC__
)"


printf "%s\n" "${input}"

mycmds

to awk shell osx mac bash bashrc unix debug profile escape alias by jv on Jul 22, 2008

help set
set -xv

#echo $-
#shopt -u
#shopt -s
#shopt -s | grep expand_aliases
#shopt -q expand_aliases; echo $?
#help shopt
#shopt -p
#shopt -s expand_aliases   

unalias mycmds1 mycmds2 mycmds3  2>/dev/null
alias mycmds1="declare -F | /usr/bin/awk '{print \$NF}' | /usr/bin/sort"
alias mycmds2="declare -F | /usr/bin/awk '{print $NF}' | /usr/bin/sort"
alias mycmds3='declare -F | /usr/bin/awk "{print $NF}" | /usr/bin/sort'

mycmds1
mycmds2
mycmds3


alias mycmds="alias -p | /usr/bin/awk -F= '{print \$1}' | /usr/bin/sort; \
              declare -F | /usr/bin/awk '{print \$NF }' | /usr/bin/sort"

mycmds

ANSI terminal color chart

to shell osx mac bash unix code color escape ansi chart by jv on Jun 02, 2008

#!/bin/bash
#
#   This file echoes a bunch of color codes to the 
#   terminal to demonstrate what's available.  Each 
#   line is the color code of one forground color,
#   out of 17 (default + 16 escapes), followed by a 
#   test use of that color on all nine background 
#   colors (default + 8 escapes).
#
#   Author: Giles Orr
#   URL: http://gilesorr.com/bashprompt/howto/c350.html
#   License: GNU Free Documentation License, Version 1.1 or any later version published by the Free Software Foundation;
#            http://gilesorr.com/bashprompt/howto/a1004.html


T='gYw'   # The test text

echo -e "\n                 40m     41m     42m     43m\
     44m     45m     46m     47m";

for FGs in '    m' '   1m' '  30m' '1;30m' '  31m' '1;31m' '  32m' \
           '1;32m' '  33m' '1;33m' '  34m' '1;34m' '  35m' '1;35m' \
           '  36m' '1;36m' '  37m' '1;37m';
  do FG=${FGs// /}
  echo -en " $FGs \033[$FG  $T  "
  for BG in 40m 41m 42m 43m 44m 45m 46m 47m;
    do echo -en "$EINS \033[$FG\033[$BG  $T  \033[0m";
  done
  echo;
done
echo

#!/bin/sh
#
#  colors v1.03
#
#  A simple shell script to output an ANSI terminal color chart.
#  It may be useful when trying to customize your ANSI terminal
#  color scheme!
#
#  Written and placed in the public domain by Ian Abbott <ian@abbott.org>
#
#  ANSI terminal color chart generator
#  Author: Ian Abbott
#  License: BSD License, http://www.opensource.org/licenses/bsd-license.php
#  URL: http://www.snippetcenter.org/de/ansi-terminal-color-chart-generator-s1346.aspx

for h in 0 1; do
  echo -e "\\033[0;${h}m\\c"
  case $h in
  0) echo -e "Normal\\c" ;;
  1) echo -e "High\\c" ;;
  esac
  echo -e " intensity foreground (background color in parentheses)\\033[m"
  for f in 0 1 2 3 4 5 6 7; do
    for b in 0 1 2 3 4 5 6 7 8; do
      echo -e "\\033[${h};3${f}\\c"
      if [ $b -lt 8 ]; then
        echo -e ";4${b}m\\c"
      else
        echo -e "m\\c"
      fi
      case $f in
      0) echo -e " BLACK \\c" ;;
      1) echo -e "  RED  \\c" ;;
      2) echo -e " GREEN \\c" ;;
      3) echo -e " YELLOW\\c" ;;
      4) echo -e "  BLUE \\c" ;;
      5) echo -e "MAGENTA\\c" ;;
      6) echo -e "  CYAN \\c" ;;
      7) echo -e " WHITE \\c" ;;
      esac
      case $b in
      8) echo -e "\\033[m" ;;
      *) echo -e " \\033[m \\c" ;;
      esac
    done
  done
  echo -e "\\033[${h}m\\c"
  for b in 0 1 2 3 4 5 6 7 8; do
    case $b in
    0) echo -e "(black)  \\c" ;;
    1) echo -e " (red)   \\c" ;;
    2) echo -e "(green)  \\c" ;;
    3) echo -e "(yellow) \\c" ;;
    4) echo -e " (blue)  \\c" ;;
    5) echo -e "(magenta)\\c" ;;
    6) echo -e " (cyan)  \\c" ;;
    7) echo -e "(white)  \\c" ;;
    8) echo -e " (none)\\c" ;;
    esac
  done
  echo -e "\\033[m\\n"
done

Screensaver as desktop background

to shell osx mac bash unix desktop background screensaver by jv on Jun 01, 2008

# cf. http://digg.com/apple/Top_15_Terminal_Commands_for_Hidden_Mac_OS_X_Settings

function sadb() {
# cf. /usr/bin/locate '*ScreenSaverEngine'
/usr/bin/screen -d -m /System/Library/Frameworks/ScreenSaver.framework/Resources/ScreenSaverEngine.app/Contents/MacOS/ScreenSaverEngine -background 
return 0
}

function sadb_stop() {
#/usr/bin/killall -d ScreenSaverEngine
#/usr/bin/killall -v ScreenSaverEngine
/usr/bin/killall -HUP ScreenSaverEngine
return 0
}

sadb
sleep 30
sadb_stop

Flushing routing tables on Mac OS X

to shell osx mac bash unix network table flush route by jv on May 14, 2008

# cf. http://ola-bini.blogspot.com/2008/05/faulty-routes-on-macos-x.html
/usr/bin/sudo /sbin/route flush

Using PlistBuddy to customize syslogd

to shell osx mac launchd bash unix defaults launchctl plistbuddy syslogd plist by jv on May 14, 2008 1 Comments


# Inspired by: http://www.maciverse.com/the-case-of-the-slow-mac-and-how-to-fix-it.html

# cf. man syslog, man syslogd and http://developer.apple.com/documentation/Darwin/Reference/ManPages/man8/syslogd.8.html
/usr/bin/open -a Console   # system.log
/usr/bin/tail -n 50 /private/var/log/system.log

help declare
declare -x sudo=/usr/bin/sudo plistbuddy=/usr/libexec/PlistBuddy defaults=/usr/bin/defaults
/usr/bin/env | /usr/bin/grep -E 'sudo=|plistbuddy=|defaults='

# create a symbolic link (on Mac OS X 10.4)
help test
/usr/bin/locate PlistBuddy
if [[ ! -e /usr/libexec/PlistBuddy ]]; then $sudo /bin/ln -s "/Library/Receipts/AdditionalEssentials.pkg/Contents/Resources/PlistBuddy" /usr/libexec/PlistBuddy; fi

# make a backup
$sudo /bin/cp -p /System/Library/LaunchDaemons/com.apple.syslogd.plist /System/Library/LaunchDaemons/com.apple.syslogd.plist.orig

# cf. http://developer.apple.com/documentation/Darwin/Reference/ManPages/man8/PlistBuddy.8.html
$plistbuddy -h   

$plistbuddy -c Print /System/Library/LaunchDaemons/com.apple.syslogd.plist
$plistbuddy -c "Print :ProgramArguments" /System/Library/LaunchDaemons/com.apple.syslogd.plist

# compare
$defaults read /System/Library/LaunchDaemons/com.apple.syslogd
$defaults read /System/Library/LaunchDaemons/com.apple.syslogd ProgramArguments

$sudo /usr/bin/nano /System/Library/LaunchDaemons/com.apple.syslogd.plist

$sudo $plistbuddy -c "Delete :ProgramArguments" /System/Library/LaunchDaemons/com.apple.syslogd.plist
$sudo $plistbuddy -c "Add :ProgramArguments array" /System/Library/LaunchDaemons/com.apple.syslogd.plist
$sudo $plistbuddy -c "Add :ProgramArguments:0 string '/usr/sbin/syslogd'" /System/Library/LaunchDaemons/com.apple.syslogd.plist
$sudo $plistbuddy -c "Add :ProgramArguments:1 string '-c'" /System/Library/LaunchDaemons/com.apple.syslogd.plist
$sudo $plistbuddy -c "Add :ProgramArguments:2 integer 3" /System/Library/LaunchDaemons/com.apple.syslogd.plist

# Mac OS X 10.5
#$sudo $plistbuddy -c "Add :ProgramArguments:3 string '-a'" /System/Library/LaunchDaemons/com.apple.syslogd.plist
#$sudo $plistbuddy -c "Add :ProgramArguments:4 string '-db_max'" /System/Library/LaunchDaemons/com.apple.syslogd.plist
#$sudo $plistbuddy -c "Add :ProgramArguments:5 integer 5000000" /System/Library/LaunchDaemons/com.apple.syslogd.plist

$plistbuddy -c "Print :ProgramArguments" /System/Library/LaunchDaemons/com.apple.syslogd.plist
$defaults read /System/Library/LaunchDaemons/com.apple.syslogd ProgramArguments
$sudo /usr/bin/nano /System/Library/LaunchDaemons/com.apple.syslogd.plist

# reset com.apple.syslogd.plist
#if [[ -n $(/usr/bin/sw_vers -productVersion | /usr/bin/grep '^10.5') ]]; then exit; fi   # exit if on Mac OS X 10.5.x
$sudo /bin/rm -f /System/Library/LaunchDaemons/com.apple.syslogd.plist
$sudo /bin/cp -p /System/Library/LaunchDaemons/com.apple.syslogd.plist.orig /System/Library/LaunchDaemons/com.apple.syslogd.plist

$sudo /usr/bin/nano /System/Library/LaunchDaemons/com.apple.syslogd.plist

# restart syslogd
#$sudo /bin/launchctl unload -w /System/Library/LaunchDaemons/com.apple.syslogd.plist 2>/dev/null
#/bin/sleep 3
#$sudo /bin/launchctl load -w /System/Library/LaunchDaemons/com.apple.syslogd.plist 2>/dev/null
#$sudo /usr/bin/killall -HUP syslogd   # alternative

newfolder contextual menu item with Automator

to shell osx mac bash unix folder directory menu automator contextual by jv on May 08, 2008

Right-click on a folder in a Finder window and select Automator -> newfolder to create a "NewFolder".


open -a Automator

#--------------------------------------------------

Drag or add actions here to build your workflow:
Library: Finder -> Action: Get Selected Finder Items
Library: Automator -> Action: Run Shell Script
                                 - Shell: /bin/sh
                                 - Pass input: as arguments

current_dir="$@"
name_of_new_dir="NewFolder"

if [[ -d "${current_dir}" ]] && [[ -w "${current_dir}" ]]; then
   /bin/mkdir -p "${current_dir}${name_of_new_dir}"
fi

exit 0


# now save the newfolder Automator workflow as a contextual menu item
Automator -> File -> Save As Plug-in ... -> Save Plug-in As: newfolder -> Plug-in for: Finder -> Save

#--------------------------------------------------

open ~/Library/Workflows/Applications/Finder/newfolder.workflow

# now open your Home directory, right-click on a folder and select Automator -> newfolder to create a "NewFolder" 
open ~

Run ClamAV from a system service agent account

to shell osx mac bash unix clamav virus account agent by jv on Feb 15, 2008

The following instructions on how to run ClamAV from a system service agent account (non-root) require an admin user account, a ClamAV setup as described here and the creation of a clamavadmin system service agent account as described here.

Use at your own risk!

First uncomment the following lines of code in the first script at http://textsnippets.com/posts/show/1405:

# create further subdirectories if necessary
...
#fi
#
#fi

Then save the file, start the script and enter the following:

You are going to create a system service agent account!

Enter first name: clamavadmin

Note: The last name is optional and defaults to "agent" if you just press <return>!
Enter last name: 

Note: The user shell is optional and defaults to "/usr/bin/false" if you just press <return>!
Enter user shell: /bin/bash

Note: The home directory is optional and defaults to "/private/var/empty" if you just press <return>!
Enter home directory: /private/var/clamavadmin

System service agent account:  clamavadmin  successfully created!



# test
dscl . -read /Users/clamavadmin
dscl . -read /Groups/clamavadmin
dscl . list /Groups GroupMembership
dscl . read /Groups/clamavadmin GroupMembership
dscl . -search /Groups GroupMembership clamavadmin
echo $(dscl . -search /Groups GroupMembership clamavadmin | awk '{print $1}' | tr '\n' ' ')
printf -- "$(dscl . -search /Groups GroupMembership clamavadmin | awk '{print $1}' | tr '\n' ' ')\n"

sudo ls -ld /private/var/clamavadmin
sudo ls -l /private/var/clamavadmin/log/clamd.log
sudo ls -ld /private/var/clamavadmin/tmp
#sudo ls -l /private/var/clamavadmin/tmp/clamd   # will be created later by man clamd
sudo find /private/var/clamavadmin \( -type f -or -type d -or -type s \) -print0 | xargs -0 sudo ls -ldG



# add clamavadmin to group admin and group $(logname)
# add $(logname) to group clamavadmin
sudo dscl . -append /Groups/admin GroupMembership clamavadmin
sudo dscl . -append /Groups/$(logname) GroupMembership clamavadmin
sudo dscl . -append /Groups/clamavadmin GroupMembership $(logname)

#sudo dscl . -delete /Groups/admin GroupMembership clamavadmin 
#sudo dscl . -delete /Groups/$(logname) GroupMembership clamavadmin  
#sudo dscl . -delete /Groups/clamavadmin GroupMembership $(logname)   

# cf. http://textsnippets.com/posts/show/1402
dirmodes ~/Documents/ClamAV/Downloads/QueueDirectory


# copy update_clamd_db.sh
sudo cp /usr/local/sbin/update_clamd_db.sh /private/var/clamavadmin/update_clamd_db.sh
sudo chown clamavadmin:clamavadmin /private/var/clamavadmin/update_clamd_db.sh
sudo chmod 0750 /private/var/clamavadmin/update_clamd_db.sh
ls -l /private/var/clamavadmin/update_clamd_db.sh

# then change the following line in sudo nano  /private/var/clamavadmin/update_clamd_db.sh
/opt/local/bin/freshclam -u root
# ... to read ...
/opt/local/bin/freshclam -u clamavadmin


# get an overview of your ClamAV file & folder permissions in /opt
sudo find /opt \( -type f -or -type d \) -iregex ".*clam.*" -print0 | xargs -0 sudo ls -ldG

# set new ClamAV file & folder permissions
sudo find /opt  \( -type f -or -type d \) -iregex ".*clam.*" -print0 | xargs -0 sudo chown clamavadmin:clamavadmin
sudo find /opt  \( -type f -or -type d \) -iregex ".*clam.*" -print0 | xargs -0 sudo chmod 0750

# reset permissions
#sudo find /opt  \( -type f -or -type d \) -iregex ".*clam.*" -print0 | xargs -0 sudo chown root:wheel  
#sudo find /opt  \( -type f -or -type d \) -iregex ".*clam.*" -print0 | xargs -0 sudo chmod 0755


# test
sudo find /opt \( -type f -or -type d \) -iregex ".*clam.*" -print0 | xargs -0 sudo ls -ldG
sudo find /opt -not -user clamavadmin \( -type f -or -type d \) -iregex ".*clam.*" -print0 | xargs -0 sudo ls -ldG


# then modify clamd.conf
sudo nano /opt/local/etc/clamd.conf

LogFileMaxSize 10M
LogTime yes
FixStaleSocket yes
TCPAddr 127.0.0.1
MaxConnectionQueueLength 30
MaxThreads 20
ExitOnOOM yes
ScanOLE2 yes  # Microsoft Office documents and .msi files
ScanPDF yes
ArchiveMaxFileSize 100M
ArchiveMaxCompressionRatio 0
#VirusEvent echo virus: %v >> /path/to/file.txt

DatabaseDirectory /opt/local/share/clamav    # hardcoded
#LogFile /private/var/log/clamd.log
#TemporaryDirectory /private/var/tmp
#DatabaseDirectory /opt/local/share/clamav
#LocalSocket /tmp/clamd

#DatabaseDirectory /private/var/clamavadmin/share/clamav
LogFile /private/var/clamavadmin/log/clamd.log
TemporaryDirectory /private/var/clamavadmin/tmp
LocalSocket /private/var/clamavadmin/tmp/clamd



# modify net.clamav.clamd.plist

sudo launchctl unload -w /Library/LaunchDaemons/net.clamav.clamd.plist 2>/dev/null
sudo cp -p /Library/LaunchDaemons/net.clamav.clamd.plist /Library/LaunchDaemons/net.clamav.clamd.root-wheel

sudo nano /Library/LaunchDaemons/net.clamav.clamd.plist

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.$
<plist version="1.0">
<dict>
        <key>Disabled</key>
        <true/>
        <key>GroupName</key>
        <string>clamavadmin</string>
        <key>Label</key>
        <string>net.clamav.clamd</string>
        <key>ProgramArguments</key>
        <array>
                <string>/opt/local/sbin/clamd</string>
                <string>-c</string>
                <string>/opt/local/etc/clamd.conf</string>
        </array>
        <key>RunAtLoad</key>
        <true/>
        <key>UserName</key>
        <string>clamavadmin</string>
</dict>

sudo launchctl load -w /Library/LaunchDaemons/net.clamav.clamd.plist 2>/dev/null



# modify net.clamav.update.clamd.db.plist

sudo launchctl unload -w /Library/LaunchDaemons/net.clamav.update.clamd.db.plist 2>/dev/null
sudo cp -p /Library/LaunchDaemons/net.clamav.update.clamd.db.plist /Library/LaunchDaemons/net.clamav.update.clamd.db.plist.root-wheel

sudo nano /Library/LaunchDaemons/net.clamav.update.clamd.db.plist

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.$
<plist version="1.0">
<dict>
        <key>Disabled</key>
        <true/>
        <key>GroupName</key>
        <string>clamavadmin</string>
        <key>Label</key>
        <string>net.clamav.update.clamd.db</string>
        <key>ProgramArguments</key>
        <array>
                <string>/private/var/clamavadmin/update_clamd_db.sh</string>
        </array>
        <key>RunAtLoad</key>
        <true/>
        <key>StartInterval</key>
        <integer>20000</integer>
        <key>UserName</key>
        <string>clamavadmin</string>
</dict>


sudo launchctl load -w /Library/LaunchDaemons/net.clamav.update.clamd.db.plist 2>/dev/null



# watch clamd.log in a second Terminal window
open /bin/bash
sudo tail -n 50 -f /private/var/clamavadmin/log/clamd.log


# now restart clamd
if [[ -e "/private/var/clamavadmin/tmp/clamd" ]]; then sudo /bin/rm -f "/private/var/clamavadmin/tmp/clamd" ; fi
sudo /opt/local/sbin/clamd -c /opt/local/etc/clamd.conf


# test
(sleep 3; echo PING; sleep 3; echo exit) | sudo telnet -u /private/var/clamavadmin/tmp/clamd
echo PING | /opt/local/bin/socat - /private/var/clamavadmin/tmp/clamd    # requires: sudo port install socat
sudo find /private/var/clamavadmin \( -type f -or -type d -or -type s \) -print0 | xargs -0 sudo ls -ldG   # /private/var/clamavadmin/tmp/clamd

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